Natural bitumen Description of Natural Bitumen RAHA GILSONITE is one of the best suppliers of natural bitumen in Iran. Natural bitumen is a natural resinous hydrocarbon found in mines in the different city of Iran. Contrary to what most people believe Natural Bitumen is the same as the Gilsonite mineral, in fact, there are many […]
Gilsonite What is Gilsonite ??? A Safe, High-Performance, Cost-Effective Additive. Some types of asphalt are made by nature as a result of the slow change of Crude oil and evaporation of its volatile materials during many years. Such an asphalt is called natural asphalt and survives more than oil asphalts. Such an asphalt may exist […]
